package socket;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.nio.charset.StandardCharsets;

/**
 * 聊天室的服务端
 */
public class Server {
    private ServerSocket serverSocket;

    public Server() {
        try {
            System.out.println("正在启动服务端");
            serverSocket = new ServerSocket(8848);
            System.out.println("服务端启动完毕");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public void start() {
        /**
         * ServerSocket提供的重要方法:
         * Socket accept()
         * 用于接收客户端的连接,并返回一个Socket实例与连接的客户端交互
         * 该方法是一个阻塞方法,调用后程序会"卡住",直到一个客户端连接为止
         */
        try {

            while (true){
                System.out.println("等待客户端连接");
                Socket socket = serverSocket.accept();
                System.out.println("一个客户端连接上了");
                InputStream in = socket.getInputStream();
                InputStreamReader isr = new InputStreamReader(in, StandardCharsets.UTF_8);
                BufferedReader br = new BufferedReader(isr);
                String mess;
                while ((mess = br.readLine()) != null) {
                    System.out.println(mess);
                }
            }









        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static void main(String[] args) {
        Server server = new Server();
        server.start();
    }
}
